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Welcome to the pages of

Frag´ Jan Zuerst --- Ask Jan First GmbH & Co. KG

Dipl.-Ing. Jan Philipp Wüsten

Serving the world with tube technology from Germany since 1993.
Visa / Mastercard willkommen
Black Board
All prices in this catalogue are in EUROS per piece (or per meter if wire etc.)
if not indicated otherwise and plus shipping.
Summer News:
High Grade Capacitors now available in the range between one and 10 µF.
Ideal for crossovers, as bypass or for the replacement of electrolytics


April´s news:
Toroid multi purpose tube trannys from stock

New: brown bakelite sheets, sheet size 49,5*28cm²

thickness price per piece, VAT included
5mm 8,90
6mm 11,00
8mm 13,70
10mm 18,20

New offers. Power tubes

YL 1350: Famous and almost never found giant Telefunken Power Pentode. NOS, in original boxes, like as if they came fresh from the factory.
This is an 80W power beast, double the transconductance of an EL 156. If at all it could be compared with several KT88´s in parallel.
And it has an easy to handle octal base so it can be used without the search
for exotic sockets.. Datasheet
Price: EUR 199 each excl. VAT / EUR 236,81 with VAT ( EU )




6336 B Cetron high power triode, NOS military stock.
This tube is very well suited for power supply regulators,
headphone- and OTL amps. New in original stock, 1980 made. Datasheet
Very special price: EUR 15.95 / EUR 18,98 (excl. / incl. VAT)


ZM-1350-Varisymbol Tester-Page online here


Smartsockets and programmed pics for ZM1350 available now !!

See our nixiepage for details.

This is the new board, connectors at the sides now for easy interconnectivity



Look at this small and easy-made clock using smart sockets, still proto, made by Chris. (uses the old board with bottom mounted connectors

Picture storagetube LN5: A beautiful piece of electron tube art.

Those are brand new, originally packed tubes which were used for short time storage of radar pictures. They are beautiful pieces of glassblowing and tube making art and look
wonderful in a shelf, an amateur´s shack or a tube collection. Grab one as long as there are some left. Datasheet
Price EUR 17,- incl. VAT ( EUR 14,29 without VAT).+ shipping Let´s not talk about what they cost when coming from the factory...
That´s how it looks like Coaxial (!) signal output Mosaic plate and grid. Grid wires are thinner than a hair and incredibly tight.

New kits on the block:
Nixie- and Scopeclocks.
5ADP1-Uhr
(c) Eric C , France, uses 5ADP1
Available now: Shortwave variable capacitors in large variety available from stock

Detailview of screwmounted
stator, partially disassembled

KONT....
  Special variable capacitors    
Best.-Nr. part description Euro
excl. VAT		 Euro
incl. VAT
  New in stock: Variable air dielectric shortwave
capacitors, pretty rugged versions, silver plated shaft, ceramic body.
All connections screwed so plate distances can be varied and modified
according to
your needs. You can also cut plated off the rotor to adapt
those caps to your needs. 6mm shaft, dimensions: 47mm*44mm*depth,
see item. Air gap approx 0,7mm, plate diameter 0,5mm		    
       
KOND12 12 pF, depth ca 42mm 11,90 14,16
KOND50 50pF, depth ca 46mm 13,20 15,71
KOND60 60pF, depth ca 46mm 13,80 16,42
KOND130 130pF, depth ca 66mm 17,61 20,96
KOND240 240pF, depth ca. 71mm 19,34 23,01
       
       
  Shortwave air trimmer, soldered brass plates for long term stability, solid construction, available with and without locking nut    
       
KONT50 50pF 8,70 10,35
KONT50B 50 pF with locking nut 8,90 10,59
KONT100 100pF 9,60 11,42
KONT100B 100pF with locking nut 10,39 12,36

High quality low price triode SE OPT.

OPT 		Authenticap Twistlock-FP-Electrolytics for US-amplifiers, fit directly into existing amps, one to four sections.

authenticaps

Our High Grade audio film caps are available now from stock: 
0.001 uF to 100 uF cover
all possible uses at voltage ratings between 630 and 1500 VDC.
Perfect for filters, coupling, crossovers etc.


Special electrolytics for guitar- and power amps up to 600 V

High voltage caps for up to 40 kV, NOS axial lead film caps


Cloth covered ISOLATED and solderable push and hook wire




We kept our pages free from programming gimmicks as long as anyhow possible but now we had to include a little Javascript to ensure the display
of the upper navigation frame.
If you don´t see the navigation bar with it´s buttons on top of the page, please activate Javascript in your browser. If you can´t
 do that or if you don´t want to do that click here for the sitemap

  Content of this site is revised and updated continually. Have fun browsing and please report bugs.
External link: A MUST to visit if you love old radios:
Radio catalogue: more than 74.500 radios with 39.000 pictures and 38.000 schematics plus radio forum.
www.Radiomuseum.org

A short FAQ about our pages and a little history


Wo ist die Deutsche Version ? Hier.
Ou sont les pages Françaises ? Ici.

How can I find out about updates of this pages ?
Simply subscribe to our newsletter. We will then email you when we have new offers for you.

Is it possible to visit you ?
No, we do not have a public store.
Where is What ?
The index framebar on the top of the screen guides you to all pages of our site.
If there is no index framebar on the top, please click here.
For pictures, datasheets and additional info click the "picture" icons or the thumbnails in the catalog lists.
Information about order procedures and contacting us can be found here.
Can I download this pages for offlinebrowsing?
Currently we offer no lists for download.
By the way: Who or what is Ask Jan First ® ??

We are a tube and antique electronic supply part company, founded in 1993 and online since 1998.
In the last years, we have served many thousands of customers worldwide. (From New Zealand to Canada)
Please ask us if you are looking for a tube or parts not listed here, we might well be able to find it for you.

Does Ask Jan First buy tubes?
Yes, we do. But we are no price consultant if you want to sell stuff on auctions not knowing where to start ;-)
I am looking for your postal address.
Here it is.
Frag´Jan Zuerst - Ask Jan First GmbH & Co. KG
Jan Philipp Wüsten
Preiler Ring 10
D- 25774 Lehe
Germany
Telephone: +49-4882-6054551
Telefax: +49-4882-6054552
Mobile: +49-173-6690429 
fjz@die-wuestens.de
alternative email: fjz@gmx.de

Those pages can be accessed at
http://www.electron-tubes.info
http://www.die wuestens.de
http://www.fragjanzuerst.de
(and some more mirrors)

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